Table 3. Peak-to-peak Hnor amplitude following TENS or sham stimulation and comparison between interventions.
| Interventions (mV) Mean (SD) | Difference within Intervention (mV). Mean (95% CI) | Comparison between Interventions (mV). Mean (SD) | ||||||
|---|---|---|---|---|---|---|---|---|
| Pre-test | During-test | Post- test | During-test minus Pre-test | Post-test minus Pre-test | During-test effect | Post-test effect |
||
| TENS 1 | 0.40 (0.26) | 0.47 (0.35) | 0.33 (0.26) | 0.07 (-0.1 to 0.2) |
-0.07 (-0.2 to 0.1) |
TENS 1 vs TENS 2 | -0.09 (0.50) p = 0.70 | -0.24 (0.48) p = 0.06 |
| TENS 2 | 0.33 (0.10) | 0.49 (0.28) | 0.50 (0.29) | 0.16 (-0.01 to 0.3) |
0.17 (0.0 to 0.3) |
|||
| SHAM 1 | 0.42 (0.26) | 0.53 (0.33) | 0.50 (0.34) | 0.11 (-0.05 to 0.3) |
0.08 (-0.04 to 0.2) |
TENS 1 vs SHAM 1 | -0.04 (0.44) p = 0.65 | -0.15 (0.36) p = 0.08 |
| SHAM 2 | 0.30 (0.18) | 0.56 (0.49) | 0.53 (0.39) | 0.26 (0.1 to 0.4) |
0.23 (0.1 to 0.4) |
TENS 2 vs SHAM 2 | -0.10 (0.46) p = 0.41 | -0.06 (0.38) p = 0.53 |
TENS 1 = TENS applied by Therapist 1; TENS 2 = TENS applied by Therapist 2; SHAM 1 = sham stimulation applied by Therapist 1; SHAM 2 = sham stimulation applied by Therapist 2. p≤0.08 are shown in bold